Exchange platform front view

Laser cutting principle:

Fiber laser cutting radiates high-intensity laser light to the metal surface, melts or vaporizes the metal through the interaction between the laser and the metal, and cuts the workpiece with the assistance of high-speed airflow. Metal melting is only one of the physical phenomena during the interaction between laser and metal. Sometimes, light energy is not mainly converted into metal melting, but manifests itself in other forms, such as vaporization, plasma formation, etc. However, for good melting to occur, metal melting needs to be the primary form of energy conversion. To this end, it is necessary to understand the various physical phenomena produced in the interaction between laser and metal and the relationship between these physical phenomena and laser parameters, so that by controlling the laser parameters, most of the laser energy can be converted into metal melting energy to achieve the purpose of cutting.

Features of BS-G4020H-1000W fiber laser cutting machine:

◆ This machine adopts a double-driven moving gantry beam structure, and then uses imported gear racks and linear guide components; thus the transmission is stable and the precision is high.

◆ The bed adopts a honeycomb structure and is then integrally welded and formed; the beam adopts a honeycomb structure within the same structure, and the entire outer wall plate is bent and formed with an integral welding process; it is then subjected to stress relief annealing treatment to be roughed; after the roughing is completed, it is subjected to vibration aging treatment. Finally, the semi-finishing and finishing processes are completed. Therefore, the structure of the bed and beams has good rigidity and high precision, eliminating the welding stress generated by welding and preventing deformation.

◆ The X, Y and Z axes use Japanese Yaskawa servo motors, which have high precision, high speed and large inertia ratio, stable performance and durability. The follow-up dust removal system and the opposite sealing layout at the lower end effectively remove a large amount of dust generated during cutting and provide a good working space for personnel.

◆ Double exchange work platform, the machine tool can be processed at the same time, and materials can be loaded and unloaded, improving the efficiency of the machine tool.

◆ The driving chain of the exchange workbench adopts a rear-mounted form to isolate and cut the working area, greatly extending the chain life and effectively reducing the failure rate.

Equipment technical indicators

System configuration

Cutting process parameters

Note: The factors that affect cutting speed are complex and this table is for reference only.

Equipment operating cost analysis

Cutting auxiliary gas consumption

◆Cutting carbon steel plate (taking processing of 1mm carbon steel plate as an example)

The gas consumption per hour is about 0.7 bottles of oxygen, and each bottle of oxygen (pressure 15.5MPa, purity 99.5%) is about 20 yuan, so the hourly auxiliary gas consumption is: 14 yuan/hour.

◆Cutting stainless steel plates or aluminum alloy plates (taking processing of 1mm stainless steel plate and aluminum alloy plate as an example)

The gas consumption is about 4 bottles of nitrogen per hour. Each bottle of pure nitrogen (purity 99.99%, pressure 15.5MPa) is about 25 yuan, so the hourly assist gas consumption is: 100 yuan/hour.

illustrate:

If your company often cuts stainless steel plates or aluminum alloys, it is strongly recommended that your company use liquid nitrogen (purity 99.99%). The liquid nitrogen medium tank is 125KG, 320 yuan/tank, and can be used for 12 hours, 320/12=26.7 yuan/hour. The price of liquid nitrogen (99.99%) is about a quarter of that of bottled pure nitrogen (99.99%), and it saves the extra ventilation and downtime caused by frequent ventilation, as well as the waste caused by excessive bottled residual gas.